Textiles: fluid treating apparatus – Machines – Liquid applying
Patent
1976-07-28
1979-02-27
Rimrodt, Louis K.
Textiles: fluid treating apparatus
Machines
Liquid applying
118 7, 118314, 118132S, 118 33, B05B 700, B05C 500, D06B 102
Patent
active
041412311
ABSTRACT:
A substrate to be patterned, such as a textile web, is moved past an array of nozzles with discharge orifices closely spaced from its surface, the substrate being firmly backed at locations confronting the nozzles by being drawn against a supporting conveyor or by being led around rollers. The nozzles are electromagnetically operated by needle valves, the valve needles being carried by membranes under substantially balanced pressures from the printing liquor and from a fluid such as compressed air. The electromagnetic coils are energized by a generator of short current pulses separated by a low holding current, the generator including two complementary power transistors in series with a coil winding. A dyestuff applicator carrying one or more of such nozzles may be transversely displaceable across the substrate, under the control of a programmer, between intermittent advances of the substrate in its longitudinal direction.
REFERENCES:
patent: 1529134 (1925-03-01), Kelter
patent: 3271102 (1966-09-01), Morgan
patent: 3443878 (1969-05-01), Weber et al.
patent: 3797756 (1974-03-01), Voit et al.
patent: 3969779 (1976-07-01), Stewart
patent: 3985006 (1976-10-01), Klein
Maschinenfabrik Peter Zimmer Aktiengesellschaft
Rimrodt Louis K.
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